What it’s like to donate part of your brainA 28-year-old man with cancer is donating part of his living brain to Alzheimer’s research. Scientists say studying living tissue could help accelerate the search for a cure. CNN’s Isobel Yeung spoke with Aidan Mcallister about why the cause is so personal. Stream the full story now on the CNN app.

Source: CNN March 11, 2026 23:49 UTC